One thing of caution however. While PETG has many advantages it has one annoying feature. Bluish tint will be visible over any coolant which is not blue or green. One of the reasons why I moved away PETG and went to PMMA. It annoyed me greatly that my yellow coolant was a bit green when looking at pretty much every angle. And PMMA is much sharp for colors than hazed PETG. With pastels it's probably less of an issue, but still I think it's worth to underline.